异丁烷结构简式

CH3CH(CH3)CH3

CH3-CH-CH3
1
CH3
也叫：2-甲基丙烷

高二的有机化学也

CH3CH(CH3)CH3

CH3
|
CH-CH3
|
CH3

CH3-CH-CH3
....CH3

H H H
| | |
H-C-C-C-H
| | |
H | H
H-C-H
|
H

中间那个碳原子下其实是单键,因为打不出来所以打了两个键